Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
| MCL | Health-based | Archived | 2025-10-01 → 2025-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 327.34 µg/L 409% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 366.1 µg/L | 60/60 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 190.15 µg/L 317% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 226 µg/L | 58/60 | SYR4 | 2012–2019 |
| Bromodichloromethane | 98.135 µg/L No EPA limit set
worst single sample: 102 µg/L | 54/54 | SYR4 | 2012–2019 |
| Chloroform | 201.25 µg/L No EPA limit set
worst single sample: 219 µg/L | 54/54 | SYR4 | 2012–2019 |
| Dibromochloromethane | 81.97 µg/L No EPA limit set
worst single sample: 95 µg/L | 54/54 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 87.1 µg/L No EPA limit set
worst single sample: 95.8 µg/L | 54/54 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 88.8 µg/L No EPA limit set
worst single sample: 134 µg/L | 53/54 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 20.535 µg/L No EPA limit set
worst single sample: 31.1 µg/L | 52/54 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 11.04 µg/L No EPA limit set
worst single sample: 11.8 µg/L | 45/54 | SYR4 | 2012–2019 |
| Bromoform | 25.125 µg/L No EPA limit set
worst single sample: 27.8 µg/L | 44/54 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 6.66 µg/L No EPA limit set
worst single sample: 11 µg/L | 39/54 | SYR4 | 2012–2019 |
| Copper | 253.65 µg/L 20% of the EPA limit 1300 µg/L
worst single sample: 404 µg/L | 30/30 | SYR4 | 2012–2018 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 9/9 | LCR | 2024 |
| Lead | 11.233 µg/L 75% of the EPA limit 15 µg/L
worst single sample: 13 µg/L | 7/30 | SYR4 | 2012–2018 |
Utility contact
Frequently asked questions about Ryan Utilities Authority
Is Ryan Utilities Authority tap water safe to drink?
EPA monitoring detected 14 contaminants in Ryan Utilities Authority's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Ryan Utilities Authority's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Ryan Utilities Authority serve?
Ryan Utilities Authority reports serving 800 people in Oklahoma, per its EPA record.
Has Ryan Utilities Authority had any water quality violations?
The EPA has 1007 violations on file for Ryan Utilities Authority, of which 894 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.